Radio Shack TRS-80 Model 3 - Page 71

System Control
$CLKON
$CLKOFF
$DATE
$DELAY
$INITIO
$READY
$RESET
$ROUTE
$SETCAS
$TIME
Cassette I/O
$CSHIN
$CSIN
$CSOFF
$CSHWR
$CSOUT
Keyboard Input
Clock-display on
Clock-display
off
Gettoday's date
Delay for a specified interval
Initialize all
I/O drivers
Jump to Model
III' 'Ready"
ResetComputer
Change
I/O device routing
Promptuser to setcassette baud rate
Getthe time
Cassette on, search for leaderand sync byte
Input a byte
Tum off cassette drive
Cassette on, Write leader and sync byte
Write a byte to cassette
$KBCHAR
$KBWAIT
$KBLINE
$KBBRK
Printer Output
$PRCHAR
$PRSCN
RS-232-C I/O
$RSINIT
$RSRCV
$RSTX
Get a character if available
Waitfor a character
Wait for a line
Checkfor
(BREAK) key only
Print a character
Printentire screen contents
Initialization
Receive a character
Send a character
Video Display Output
$VDCHAR
$VDCLS
$VDLINE
Display a character
Clearthe screen
Display a line
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